HP StorageWorks 2500 Disk System Enclosure User Manual download pdf (Page 48)

EMU error condit

ion report

The EMU constan

tly monitors enclosure operation and notifies the user of conditions that could affect

operation. When an error condition is detected, the EMU:

• Displays Er in the alphanumeric display

• Generates an a

udible alarm (if enabled)

• Updates the visual indicators

• Generates a condition report

• Reports the c

ondition to the HP-UX application software

Severity levels

DS2500 error conditions are grouped into one of four severity types:

• Unrecoverable—This category is the most severe condition. It occurs when one or more enclosure

components have failed and some enclosure functions are disabled.

HP recommends implementing corrective action immediately for an unrecoverable condition.

• Critical—Occurs when one or more enclosure components have failed or are operating outside

of their specification, and normal operation of at least one component is impossible.

HP recommends prompt corrective action to prevent system degradation.

• Noncritical—Occurs when one or more enclosure components have failed or are operating

outside of their specifications, but normal operation of the enclosure is possible. Additional

errors, however, could affect the ability of the devices to operate correctly.

• Information—Advises you that a condition exists that could become an error and require

corrective action. In effect, an information condition provides an early warning, which enables

you to prepare to implement corrective action before a component fails.

Error condition reports

NOTE:

An error always generates a condition report. However, condition reports may also be generated

forcircumstancesotherthanerrors.

The EMU stores each condition report in an error queue for at least 15 seconds after the error is reported.

This ensures that all errors are displayed in the event of multiple or recurring errors. The complete report

is stored in the error queue. When you correct the error, the condition report is removed from the queue.

You can the use the EMU push buttons to display the condition report in the alphanumeric display.

IMPORTANT:

Always record the 6-digit error code, and call your HP service representative for a plan of action.

See "Error condition report (Er)" on page 42 for information about viewing the error condition reports.

To decode the error condition report, see Appendix C.

Correcting the error removes the condition report from the error queue. An information error doesn't

require repair, and is removed from the queue after a fixed period of time.

Status indicators

LEDs indicating DS2500 status are located on the front and rear of each enclosure.

Troubleshooting

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HP StorageWorks 2500 Disk System Enclosure User Manual Page 48

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